S-1131B47UC-N5GTFU

Current - Output:	300mA
Supplier Device Package:	SOT-89-5
Package / Case:	SOT-89-5/6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	65µA
Current - Quiescent (Iq):	1µA
Series:	S-1131
Voltage Dropout (Max):	0.28V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.7V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction The S-1131B47UC-N5GTFU is a Linear Voltage Regulator from National Semiconductor. It is a fully integrated device and it is capable of performing step-up, step-down and act as a voltage regulator. Application Field The S-1131B47UC-N5GTFU is used for a wide range of floating power applications. It can be used as a voltage regulator for mobile phones, audio amplifiers, network control systems and other telecommunications networks. It is also used in automotive systems like ECUs, sensors, electro-hydraulic systems, and keyless-entry systems. Working Principle The S-1131B47UC-N5GTFU is a linear voltage regulator. It has an input voltage range of 4.0V to 35V and an output voltage range of 0.8V to 34V. It is able to convert a high input voltage to a lower output voltage and vice versa. The S-1131B47UC-N5GTFU consists of an internal reference voltage that is compared to the input voltage. When the input voltage is higher than the internal reference, the S-1131B47UC-N5GTFU works as a step down voltage regulator. And when the input voltage is lower than the internal reference, the S-1131B47UC-N5GTFU works as a step-up voltage regulator. The S-1131B47UC-N5GTFU also has a parallel P- channel MOSFET, which is used as an overload protection. The P-channel MOSFET starts to conduct if the output voltage exceeds a certain level, which is usually the output voltage plus 50mV. This protects the device from overloading. Conclusion The S-1131B47UC-N5GTFU is a linear voltage regulator from National Semiconductor. It is used for a wide range of floating power applications such as mobile phones, audio amplifiers, network control systems and other telecommunications networks. It is able to convert a high input voltage to a lower output voltage and vice versa. It also has an internal reference voltage that is compared to the input voltage and a parallel P- channel MOSFET for overload protection.

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